package com.t7;

/**
 * Created by xuyiwei on 2018/7/19.
 */
class Alus{

    private String s;

    public String getS() {
        return s;
    }

    public void setS(String s) {
        this.s = s;
    }
}
public class Blus {
    public static void main(String[] args) {
        Alus alus = new Alus();
        alus.setS("111");
        final Alus b = alus;
        System.out.println(b.getS());
        alus.setS("222");
        System.out.println(b.getS());
        //111
        //222
        Integer i = new Integer(1);
    }
}
